{"_buckets": {"deposit": "e3589a46-9a57-40fe-845d-701818eb7487"}, "_deposit": {"id": "3336", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "3336"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00003336", "sets": ["454", "425"]}, "item_5_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Application of Downlink Multiuser MIMO Transmission Technology to Next Generation Very High Throughput Wireless Access Systems"}]}, "item_5_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2010-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "9", "bibliographicPageEnd": "1139", "bibliographicPageStart": "1127", "bibliographicVolumeNumber": "J93-B", "bibliographic_titles": [{"bibliographic_title": "電子情報通信学会論文誌. B, 通信"}, {"bibliographic_title": "電子情報通信学会論文誌. B, 通信", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "高い周波数利用効率を実現する技術としてMU-MIMO(Multiuser-Multiple-Input-Multiple-Output)伝送技術が注目され,現在策定中の次世代無線LANシステムの規格IEEE802.11acでもシステムスループットを向上させる技術として採用される可能性が高まっている.本論文ではMU-MIMO伝送技術の実システムへの応用に着目し,信号処理量が比較的少ない線形信号処理によるMU-MIMO技術に焦点を絞り,屋内実環境での環境変動特性,MU-MIMO技術の適用領域,下りリンクMU-MIMO技術を概説する.更に,試作した送受16アンテナから構成されるMU-MIMO伝送評価用ハードウェアでのデータ伝送実験の結果によって,周波数利用効率50bit/s/Hzが実環境において達成可能であることを示す.", "subitem_description_type": "Abstract"}]}, "item_5_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "42172", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Takatori, Yasushi"}]}, {"nameIdentifiers": [{"nameIdentifier": "42173", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Nishimori, Kentaro"}]}]}, "item_5_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "電子情報通信学会"}]}, "item_5_relation_31": {"attribute_name": "異版である", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://ci.nii.ac.jp/naid/110007730949", "subitem_relation_type_select": "URI"}}, {"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.ieice.org/jpn/trans_online/", "subitem_relation_type_select": "URI"}}]}, "item_5_rights_15": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "Copyright(C)2010 IEICE"}, {"subitem_rights": "本文データは学協会の許諾に基づきCiNiiから複製したものである"}]}, "item_5_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_5_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA11325909", "subitem_source_identifier_type": "NCID"}]}, "item_5_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "13444697", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "鷹取, 泰司"}], "nameIdentifiers": [{"nameIdentifier": "42170", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "西森, 健太郎"}], "nameIdentifiers": [{"nameIdentifier": "42171", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-07-30"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "110007730949.pdf", "filesize": [{"value": "1.7 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1700000.0, "url": {"label": "110007730949.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/3336/files/110007730949.pdf"}, "version_id": "e3a786d8-341d-4be2-8967-3c11791c914f"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "マルチユーザMIMO", "subitem_subject_scheme": "Other"}, {"subitem_subject": "空間多重", "subitem_subject_scheme": "Other"}, {"subitem_subject": "高速無線LAN", "subitem_subject_scheme": "Other"}, {"subitem_subject": "IEEE802.11ac", "subitem_subject_scheme": "Other"}, {"subitem_subject": "空間信号処理", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(\u003c特集\u003e高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(\u003c特集\u003e高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)"}, {"subitem_title": "次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(\u003c特集\u003e高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["454", "425"], "permalink_uri": "http://hdl.handle.net/10191/30657", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-12-02"}, "publish_date": "2014-12-02", "publish_status": "0", "recid": "3336", "relation": {}, "relation_version_is_last": true, "title": ["次世代高速無線アクセスシステムへの下りリンクマルチユーザMIMO技術の適用(\u003c特集\u003e高度化するワイヤレスシステムを支えるアンテナ・伝搬技術論文)"], "weko_shared_id": null}